关于C#编程问题，望解答，谢谢，悬赏80分！！

Question

题目：定义一个人员类clsPerson,包括属性：姓名，编号，性别和用于输入输出的方法，在此基础上派生出学生类clsStudent(增加成绩)和教师类clsTeacher(增加教龄)，并实现对学生信息和教师信息的输入输出。

Answer 1

C#程序：

using System;

class Program

{

    static void Main()

    {

        clsStudent s = new clsStudent("张三其", "201207330001", "男", 86);

        s.Display();

        clsTeacher t = new clsTeacher("李师", "A1231", "女", 10);

        t.Name = "李师煊";

        t.Display();

    }

}

//人员类

class clsPerson

{

    protected String name;          //姓名

    protected String id;            //编号

    protected String gender;        //性别

    //构造方法

    public clsPerson()

    {

        name = null;

        id = null;

        gender = null;

    }

    //构造方法

    public clsPerson(String name, String id, String gender)

    {

        this.name = name;

        this.id = id;

        this.gender = gender;

    }

    //“姓名”属性

    public String Name

    {

        get

        {

            return name;

        }

        set

        {

            name = value;

        }

    }

    //“编号”属性

    public String Id

    {

        get

        {

            return id;

        }

        set

        {

            id = value;

        }

    }

    //“性别”属性

    public String Gender

    {

        get

        {

            return gender;

        }

        set

        {

            gender = value;

        }

    }

}

//学生类

class clsStudent : clsPerson

{

    protected double score;         //成绩

    //构造方法

    public clsStudent():base()

    {        

        score = 0;

    }

    //构造方法

    public clsStudent(String name, String id, String gender, double score)

        : base(name, id, gender)

    {

        this.score = score;

    }

    public void Display()

    {

        Console.WriteLine("学生信息：");

        Console.WriteLine("姓名：{0}", Name);

        Console.WriteLine("编号：{0}", id);

        Console.WriteLine("性别：{0}", gender);

        Console.WriteLine("成绩：{0}", score);

    }

}

//教师类

class clsTeacher : clsPerson

{

    protected double teachAge;      //教龄

    //构造方法

    public clsTeacher()

        : base()

    {

        teachAge = 0;

    }

    //构造方法

    public clsTeacher(String name, String id, String gender, double teachAge)

        : base(name, id, gender)

    {

        this.teachAge = teachAge;

    }

    public void Display()

    {

        Console.WriteLine("教师信息：");

        Console.WriteLine("姓名：{0}", name);

        Console.WriteLine("编号：{0}", id);

        Console.WriteLine("性别：{0}", gender);

        Console.WriteLine("教龄：{0}", teachAge);

    }

}

运行测试：

Answer 2

类：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Test
{
public class Person
{
//编号
private string number;
public string Number { get; set; }

//姓名
private string name;
public string Name { get; set; }

//性别
private string sex;
public string Sex { get; set; }

public Person(string number, string name, string sex)
{
this.number = number;
this.name = name;
this.sex = sex;
}

public virtual void Show()
{
System.Console.Write(string.Format("编号:{0} , 姓名:{1} , 性别:{2} ", this.number, this.name, this.sex));
}
}

public class Student : Person
{
//成绩
private int score;
public int Score
{
get { return score; }
set { score = value; }
}

public Student(string number, string name, string sex)
: base(number, name, sex) { }

public override void Show()
{
base.Show();
System.Console.Write(string.Format("成绩:{0} ", this.score));
}
}

public class Teacher : Person
{
//教龄
private int experience;
public int Experience
{
get { return experience; }
set { experience = value; }
}

public Teacher(string number, string name, string sex)
: base(number, name, sex) { }

public override void Show()
{
base.Show();
System.Console.Write(string.Format("教龄:{0} ", this.experience));
}
}
}

调用的例子：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Test
{
class Program
{
static void Main(string[] args)
{
Person person = new Person("001", "xiaoli", "man");
person.Show();

Student student = new Student("002", "xiaowamg", "man");
student.Score = 80;
student.Show();

Teacher teacher = new Teacher("002", "xiaowamg", "man");
teacher.Experience = 20;
teacher.Show();

System.Console.ReadKey();
}
}
}

Answer 3

class Program
{
static void Main(string[] args)
{
clsStudent s = new clsStudent();
s.name = "小小生";
s.成绩 = "100";
s.say();
clsTeacher t = new clsTeacher();
t.name = "123";
t.教龄 = "20";
t.say();

Console.ReadKey();
}
}
abstract class clsPerson
{
public string name{set;get;} //定义公共属性name,sex,age
public string sex { set; get; }
public string age { set; get; }
public abstract void say(); //定义抽象的say方法，子类里边必须包含此方法
}
class clsStudent : clsPerson //学生类继承porson类
{
public string 成绩 { get; set; }

public override void say() //只需要实现say方法就可以了，属性字段不用重新定义了
{
Console.WriteLine("我的名字是：{0}，我的成绩是{1}",this.name,this.成绩);
}
}
class clsTeacher : clsPerson
{
public string 教龄 { get; set; }

public override void say()
{
Console.WriteLine("我的名字是：{0}，我的教龄是{1}", this.name,this.教龄);
}
}
}

我这里用的抽象类，有不明白的可以问我e_mail:hackerxxs@163.com

Answer 4

等下回答

追问

嗯，好，谢谢

追答

不好意思，电脑拿去修了。。。